Răspuns:
Ai rezolvarile mai jos
Explicație pas cu pas:
Salutare !
Retinem :
raport = a/b
a) 120/30 = 4
b) 12/144 = 1/12
c) 2 1/2 =(2 × 2 + 1)/2 = 5/2
1 1 /4 = (1 × 4 + 1)/4 = 5/4
5/2 : 5/4 = 5/2 × 4/5 = 2
d) 0,(2) = 2/9 ; 0,(3) = 3/9
2/9 : 3/9 = 2/9 × 9/3 = 2 × 1/3 = 2/3
e) 2,1(3) = (213 - 21)/90 = 32/15
32/15 : 4/3 = 32/15 × 3/4 = 8/5
<<darius>>